legomir

Maybe try techniques from this tutorial? http://pepefx.blogspot.com/2016/04/cigarette-smoke.html http://www.gridmarkets.com/alessandro-pepe.html

Hi! Is there way to call "Render to Disk in Background" form Python? Houdini use one thread for generating ifd, so I want spawn rendering in background without H freeze like "Render to Disk in Background", but don't see any information in help or inside node how this works. I implement this in naive way using multiple hrender subprocesses works perfectly fine but subprocesses don't terminates automatically. Any one knows proper way to this?

I try smth like infection by solver sop using point clouds with simple addition work perfectly, but when if statement is time dependent and it is false vex reseting attribute. Why? Or it is a bag? int closedPt[] = pcfind(@OpInput1,"P",@P,10,5); foreach(int pt;closedPt) { int nearInf = point(@OpInput2,"inf",pt); if(nearInf > 0 && @risk > 0.3) { @inf += 1; } } tempCrystal3_toOdforce.hip

Sorry I'm stupid, I forgot change volume name in shader.

So i have a lot of points and i want convert it to fog volume. VDB can do this, but is really slow with a lot of points and small psale so I try use VDB from particle fluid and convert SDF to fog in viewport looks fine but still blocky in render. Why? How I can fix this? problem.hip

Is not possible to do this in this way(weighting by particle), but volume vop and point vop are building on cvex context so maybe is some way to do this?

I try compute custom weighting function for every step on simulation for nearest voxel around point.

Yep. This is exactly who i want to do Sorry for my unclear explanations

Maybe name of this topic is a little to generic so be precisely i want access to setting voxel value by it indexes. Is this possible in VEX in efficient and elegant way or rather i must be using HDK or Python for solve this problem

Is possible to setting value of voxel in vex like this way: density[j][k] = some_value; or I will have to use python or HDK?

You can use for e.g. vex point cloud for this.

https://www.sidefx.com/docs/houdini14.0/nodes/sop/assembleanything who you want

But when you uses bullet solver in dops pieces really be a instance on specific points so you can control them like particles(you can use particles wrangles and forces), but still are pretty fast bullet sim with collisions so what you don't want use RBD solver?

Quick modification in dops and them work cubeFracture_v002.hip

VDB smooth doesn't respect the SDF values of volume primitive